<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>icon</title>
        <link rel="stylesheet" href="css/rest.css">
        <link rel="stylesheet" href="css/icon.css">
        <style>
            body {
                background-color: darkgrey
            }
        </style>
    </head>
    <body>
        <div class="wapper">
            <i class="icon icon-tanhaoblack"></i>   icon-tanhaoblack
            <br>
            <i class="icon icon-pen"></i>           icon-pen
            <br>
            <i class="icon icon-search"></i>        icon-search
            <br>
            <img style="border: 10px solid #000" src="img/icon.svg">
        </div>
    </body>
</html>